There are some complaints about the same issue here.
http://www.avforums.com/forums/showthread.php?t=676317
Might be a HDD issue. If you are stuck with it maybe try changingthe HDD if you have one knocking about, otherwise get it exchanged for a some other make.
I think a lot, if not all, Philips DVD players and recorders are just rebadged Liteon or LG products. You can draw your own conclusions from that.
I've had 2 Philips players and am currently using a Philips DVR3480. All performed well. None broke down just got retired as they became superceded. Just ones luck I suppose.??
Hope you get it sorted one way or another.